#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <arpa/inet.h>
#include <netdb.h>
#include "../common/function.h"

int main(int argc, char *argv[])
{
    int i;
    struct hostent *host;
    if(argc != 2) {
        printf("Usage: %s <addr>\n", argv[0]);
        exit(1);
    }

    host = gethostbyname(argv[1]);
    if (!host)
        error_handling("gethost error");
    
    printf("Official name: %s \n", host->h_name);
    for (i = 0; host->h_aliases[i]; i++)
        printf("Aliases %d: %s \n", i+1, host->h_aliases[i]);
    printf("Address type: %s \n",
        (host->h_addrtype == AF_INET) ? "AF_INET" : "AF_INET6");
    for (i = 0; host->h_addr_list[i]; i++)
        printf("IP addr %d: %s \n", i+1,
            inet_ntoa(*(struct in_addr*)host->h_addr_list[i]));
    return 0;
}